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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Florestas. |
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Data corrente: |
06/06/1995 |
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Data da última atualização: |
27/04/2009 |
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Autoria: |
GOMES, A. R. S. |
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Título: |
Effects of flooding on seedlings of woody plants. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
1979. |
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Páginas: |
76 f. |
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Idioma: |
Inglês |
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Notas: |
Thesis (Master of Science) - University of Wisconsin. |
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Conteúdo: |
Flooding induced various physiological and morphological changes in Fraxinus pennsylvania, Eucalyptus camaldulensis, E. globulus and Pinus halepensis seedlings. Responses to flooding included stomatal closure, leaf epinastry, reduction in growth of shoots and roots, production of hypertrophied lenticels and adventitious roots on submerged portions of stems, change in orientation of newly-formed roots, development of aerenchyma tissue, stem splitting, exposure of stem wood, and inhibition of formation of secondary needles. However, these changes varied appreciably among species. For example, although production of thick, sparsely branched root systems was a common response to flooding in all species except P. halepensis, only F. pennsylvanica and E. camaldulen-sis formed adventitious roots and only F. pennsylvanica developed hypertrophied lenticels on submerged portions of stems. Leaf epinasty was observed in both species of Eucalyptus but not in F.pennsylvanica or P. halepensis. Production of new upwardly growing roots from the top of the tap root was observed only in the two species of Eucalyptus. Flooding reduced dry weight increment of 8- and 10-week-old F.pennsylvanica seedlings, with greater reduction in the younger seedlings. In both age classes dry weight increment wasreduced more in roots than in shoots. Flooding greatly increased leaf diffusion resistance (r1) (induced stomatal closure) within a day in 8-week-old F. pennsylvanica seedlings and within 2 days in 10-week-old seedlings. The r1 value of both... MenosFlooding induced various physiological and morphological changes in Fraxinus pennsylvania, Eucalyptus camaldulensis, E. globulus and Pinus halepensis seedlings. Responses to flooding included stomatal closure, leaf epinastry, reduction in growth of shoots and roots, production of hypertrophied lenticels and adventitious roots on submerged portions of stems, change in orientation of newly-formed roots, development of aerenchyma tissue, stem splitting, exposure of stem wood, and inhibition of formation of secondary needles. However, these changes varied appreciably among species. For example, although production of thick, sparsely branched root systems was a common response to flooding in all species except P. halepensis, only F. pennsylvanica and E. camaldulen-sis formed adventitious roots and only F. pennsylvanica developed hypertrophied lenticels on submerged portions of stems. Leaf epinasty was observed in both species of Eucalyptus but not in F.pennsylvanica or P. halepensis. Production of new upwardly growing roots from the top of the tap root was observed only in the two species of Eucalyptus. Flooding reduced dry weight increment of 8- and 10-week-old F.pennsylvanica seedlings, with greater reduction in the younger seedlings. In both age classes dry weight increment wasreduced more in roots than in shoots. Flooding greatly increased leaf diffusion resistance (r1) (induced stomatal closure) within a day in 8-week-old F. pennsylvanica seedlings and within 2 days in 10-we... Mostrar Tudo |
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Palavras-Chave: |
Flooding; Plants. |
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Thesagro: |
Inundação; Muda; Planta; Planta Lenhosa; Semeadura. |
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Thesaurus Nal: |
seedlings; woody plants. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02129nam a2200241 a 4500
001 1304705
005 2009-04-27
008 1979 bl uuuu m 00u1 u #d
100 1 $aGOMES, A. R. S.
245 $aEffects of flooding on seedlings of woody plants.
260 $a1979.$c1979
300 $a76 f.
500 $aThesis (Master of Science) - University of Wisconsin.
520 $aFlooding induced various physiological and morphological changes in Fraxinus pennsylvania, Eucalyptus camaldulensis, E. globulus and Pinus halepensis seedlings. Responses to flooding included stomatal closure, leaf epinastry, reduction in growth of shoots and roots, production of hypertrophied lenticels and adventitious roots on submerged portions of stems, change in orientation of newly-formed roots, development of aerenchyma tissue, stem splitting, exposure of stem wood, and inhibition of formation of secondary needles. However, these changes varied appreciably among species. For example, although production of thick, sparsely branched root systems was a common response to flooding in all species except P. halepensis, only F. pennsylvanica and E. camaldulen-sis formed adventitious roots and only F. pennsylvanica developed hypertrophied lenticels on submerged portions of stems. Leaf epinasty was observed in both species of Eucalyptus but not in F.pennsylvanica or P. halepensis. Production of new upwardly growing roots from the top of the tap root was observed only in the two species of Eucalyptus. Flooding reduced dry weight increment of 8- and 10-week-old F.pennsylvanica seedlings, with greater reduction in the younger seedlings. In both age classes dry weight increment wasreduced more in roots than in shoots. Flooding greatly increased leaf diffusion resistance (r1) (induced stomatal closure) within a day in 8-week-old F. pennsylvanica seedlings and within 2 days in 10-week-old seedlings. The r1 value of both...
650 $aseedlings
650 $awoody plants
650 $aInundação
650 $aMuda
650 $aPlanta
650 $aPlanta Lenhosa
650 $aSemeadura
653 $aFlooding
653 $aPlants
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 3 | |
| 2. |  | LOBAO, D. E.; CARVALHO, D. L.; GOMES, A. R. S.; DANTAS NETO, A.; SANTOS, I. S. SAF'S a esperiencia do sudeste baiano. In: CONGRESSO BRASILEIRO SOBRE SISTEMAS AGROFLORESTAIS, 1.; ENCONTRO SOBRE SISTEMAS AGROFLORESTAIS NOS PAÍSES DO MERCOSUL, 1., 1994, Porto Velho. Anais. Colombo: EMBRAPA-CNPF, 1994. v. 1, p. 109-123. (EMBRAPA-CNPF. Documentos, 27).| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 3 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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